MODELING AND ANALYSIS OF SINGLE-PHASE INDUCTION MOTOR DRIVE FOR VARIABLE CAPACITY CONTROL OF A REFRIGERATOR COMPRESSOR

A refrigeration system with single-phase induction motor compressor is used to operate the cooling process at constant speed and On/Off control mode. Using a motor driver with this system allows us to utilize variable speed control algorithms, and gives many opportunities to improve energy efficiency. This paper presents developed model simulation results of a single-phase induction motor drive to improve energy efficiency for a refrigerator compressor motor. For this aim, firstly, a household refrigerator compressor and a compatible drive system are determined to obtain the model of the system. Based on the catalog values of a selected real compressor, a model is created. Then, the developed model simulation results are verified with the real compressor data. In the drive system model, scalar control, single-phase full bridge inverter topology and unipolar sinusoidal pulse width modulation methods are employed. Finally, total harmonic distortion and energy consumption of a single-phase induction motor which is driven by the developed driver model are measured. Energy consumption values of the conventional and variable-speed cooling systems which are available in the market are compared with the developed model.

Keywords:

Single-Phase induction motor, refrigerator compressor motor, energy efficiency, variable frequency driver frequency control, sinusoidal pulse width modulation.,

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Sigma Mühendislik ve Fen Bilimleri Dergisi-Cover

ISSN: 1304-7191
Yayın Aralığı: Yılda 4 Sayı
Yayıncı: Yıldız Teknik Üniversitesi

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